May 18th, 2012
06:18 PM ET
Washington (CNN) – U.S. President Barack Obama and other world leaders are set to address a host of pressing economic and military security issues this weekend as the United States hosts a high stakes Group of Eight summit outside Washington and a NATO summit in Obama's adopted hometown of Chicago.
The three-day diplomatic marathon kicked off Friday morning with remarks by Obama on the rising concern over global food security. Obama outlined a new international effort to address hunger in Africa and elsewhere, calling it a moral, economic and security imperative.
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